Chemistry 9701 · AS & A Level · Nitrogen and sulfur

Nitrogen and sulfur — practice question

$\text{NaOH(aq)}$ is mixed with $\text{NH}_4\text{Cl(aq)}$, then the mixture is heated. The gas formed changes damp red litmus paper to blue. Which row is correct?

  • Aammonium ion: Brønsted-Lowry acid; water on litmus paper: Brønsted-Lowry base
  • Bammonium ion: Brønsted-Lowry acid; water on litmus paper: Brønsted-Lowry acid
  • Cammonium ion: Brønsted-Lowry base; water on litmus paper: Brønsted-Lowry acid
  • Dammonium ion: Brønsted-Lowry base; water on litmus paper: Brønsted-Lowry base

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI